jcr/org.argeo.cms.ui/src/org/argeo/eclipse/ui/jcr/lists/SimpleJcrNodeLabelProvider.java

   1 package org.argeo.eclipse.ui.jcr.lists;
   2
   3 import java.text.DateFormat;
   4 import java.text.DecimalFormat;
   5 import java.text.NumberFormat;
   6 import java.text.SimpleDateFormat;
   7
   8 import javax.jcr.Node;
   9 import javax.jcr.PropertyType;
  10 import javax.jcr.RepositoryException;
  11 import javax.jcr.Value;
  12
  13 import org.argeo.eclipse.ui.EclipseUiException;
  14 import org.eclipse.jface.viewers.ColumnLabelProvider;
  15
  16 /** Base implementation of a label provider for controls that display JCR Nodes */
  17 public class SimpleJcrNodeLabelProvider extends ColumnLabelProvider {
  18         private static final long serialVersionUID = -5215787695436221993L;
  19
  20         private final static String DEFAULT_DATE_FORMAT = "EEE, dd MMM yyyy";
  21         private final static String DEFAULT_NUMBER_FORMAT = "#,##0.0";
  22
  23         private DateFormat dateFormat;
  24         private NumberFormat numberFormat;
  25
  26         final private String propertyName;
  27
  28         /**
  29          * Default Label provider for a given property of a node. Using default
  30          * pattern for date and number formating
  31          */
  32         public SimpleJcrNodeLabelProvider(String propertyName) {
  33                 this.propertyName = propertyName;
  34                 dateFormat = new SimpleDateFormat(DEFAULT_DATE_FORMAT);
  35                 numberFormat = DecimalFormat.getInstance();
  36                 ((DecimalFormat) numberFormat).applyPattern(DEFAULT_NUMBER_FORMAT);
  37         }
  38
  39         /**
  40          * Label provider for a given property of a node optionally precising date
  41          * and/or number format patterns
  42          */
  43         public SimpleJcrNodeLabelProvider(String propertyName,
  44                         String dateFormatPattern, String numberFormatPattern) {
  45                 this.propertyName = propertyName;
  46                 dateFormat = new SimpleDateFormat(
  47                                 dateFormatPattern == null ? DEFAULT_DATE_FORMAT
  48                                                 : dateFormatPattern);
  49                 numberFormat = DecimalFormat.getInstance();
  50                 ((DecimalFormat) numberFormat)
  51                                 .applyPattern(numberFormatPattern == null ? DEFAULT_NUMBER_FORMAT
  52                                                 : numberFormatPattern);
  53         }
  54
  55         @Override
  56         public String getText(Object element) {
  57                 try {
  58                         Node currNode = (Node) element;
  59
  60                         if (currNode.hasProperty(propertyName)) {
  61                                 if (currNode.getProperty(propertyName).isMultiple()) {
  62                                         StringBuilder builder = new StringBuilder();
  63                                         for (Value value : currNode.getProperty(propertyName)
  64                                                         .getValues()) {
  65                                                 String currStr = getSingleValueAsString(value);
  66                                                 if (notEmptyString(currStr))
  67                                                         builder.append(currStr).append("; ");
  68                                         }
  69                                         if (builder.length() > 0)
  70                                                 builder.deleteCharAt(builder.length() - 2);
  71
  72                                         return builder.toString();
  73                                 } else
  74                                         return getSingleValueAsString(currNode.getProperty(
  75                                                         propertyName).getValue());
  76                         } else
  77                                 return "";
  78                 } catch (RepositoryException re) {
  79                         throw new EclipseUiException("Unable to get text from row", re);
  80                 }
  81         }
  82
  83         private String getSingleValueAsString(Value value)
  84                         throws RepositoryException {
  85                 switch (value.getType()) {
  86                 case PropertyType.STRING:
  87                         return value.getString();
  88                 case PropertyType.BOOLEAN:
  89                         return "" + value.getBoolean();
  90                 case PropertyType.DATE:
  91                         return dateFormat.format(value.getDate().getTime());
  92                 case PropertyType.LONG:
  93                         return "" + value.getLong();
  94                 case PropertyType.DECIMAL:
  95                         return numberFormat.format(value.getDecimal());
  96                 case PropertyType.DOUBLE:
  97                         return numberFormat.format(value.getDouble());
  98                 case PropertyType.NAME:
  99                         return value.getString();
 100                 default:
 101                         throw new EclipseUiException("Unimplemented label provider "
 102                                         + "for property type " + value.getType()
 103                                         + " while getting property " + propertyName + " - value: "
 104                                         + value.getString());
 105
 106                 }
 107         }
 108
 109         private boolean notEmptyString(String string) {
 110                 return string != null && !"".equals(string.trim());
 111         }
 112
 113         public void setDateFormat(String dateFormatPattern) {
 114                 dateFormat = new SimpleDateFormat(dateFormatPattern);
 115         }
 116
 117         public void setNumberFormat(String numberFormatPattern) {
 118                 ((DecimalFormat) numberFormat).applyPattern(numberFormatPattern);
 119         }
 120 }